Low temperature preparation of flower-like BiOCl film and its photocatalytic activity
Flower-like BiOCl film was prepared in a low temperature by the alcoholysis and coating method using BiCl3 as precursor. The obtained film were characterized by XRD, SEM, EDS and DRS and the results showed that the obtained film was composed of tetragonal phase BiOCl with flower-like structure and had a good absorption of ultraviolet. The photocatalytic activity of BiOCl film was evaluated by the degradation of methyl orange under LJV light irradiation. The results showed that the film prepared in low temperature had the best photocatalytic activity. About 97% methyl orange can be degraded after 150 min UV light irradiation. After reused four times, the photodegradation rate for BiOCl film maintained about 94%, which indicated the BiOCl film have a long photocatalytic lifetime and stable. In addition, a possible fabrication mechanism of BiOCl flower-like film was also inferred and the results suggested that the ethylene glycol solvent may favor the formation of the flower-like structure.
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万方数据
维普
